I've been considering buying a second ATI HD 4850 for my computer, but I wonder if my PSU is adequate enough for two 4850's in Crossfire. If not, could it take one HD 4870
Motherboard: MSI K9A2 CF (2 PCI-E slots + 1 PCI slot)
PSU: XION 580W, don't know the other details so well...
And also...